MULTILAYER FLEXIBLE FILM BODY
First Claim
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1. A multi-layer flexible film body comprising:
- a carrier layer and a decorative layer system providing optically recognizable information , wherein the system comprises a plurality of layers forming an electrically controlled display element, by the activation of which the optically recognizable information becomes visible;
whereinthe system further comprising two electrode layers and at least one layer between the two electrode layers, the at least one layer containing at least one of an electrochromic material, an electroluminescent material, or an organic/inorganic florescent substance, and which electrode layers form an electrically controlled display element; and
at least one of the electrodes of the display element comprises an unstructured electrode layer structured by an overprinted electrically nonconducting printing material in negative form of the optically recognizable information such that the electrodes have only in the region of the optically recognizable information an electrically conductive surface which is in contact with the one electrochromic material, the electroluminescent material or the organic/inorganic fluorescent substance.
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Abstract
The invention concerns a multi-layer flexible film body (6), in particular a label film or packaging film as well as a goods identification system and uses of such a film body. The film body (6) has a carrier layer and a decorative layer system (11) which provides optically recognisable information. A plurality of layers of the decorative layer system form an electronically controlled display element (65), by the activation of which the optically recognisable information becomes visible.
34 Citations
26 Claims
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1. A multi-layer flexible film body comprising:
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a carrier layer and a decorative layer system providing optically recognizable information , wherein the system comprises a plurality of layers forming an electrically controlled display element, by the activation of which the optically recognizable information becomes visible;
whereinthe system further comprising two electrode layers and at least one layer between the two electrode layers, the at least one layer containing at least one of an electrochromic material, an electroluminescent material, or an organic/inorganic florescent substance, and which electrode layers form an electrically controlled display element; and at least one of the electrodes of the display element comprises an unstructured electrode layer structured by an overprinted electrically nonconducting printing material in negative form of the optically recognizable information such that the electrodes have only in the region of the optically recognizable information an electrically conductive surface which is in contact with the one electrochromic material, the electroluminescent material or the organic/inorganic fluorescent substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26-27. -27. (canceled)
Specification